Appendix B Using a Standalone JBOD Array (Sun StorEdge 3510 FC Array Only) B-9
B.7.2 Dual-Port Connections to a Sun StorEdge 3510 FC
JBOD Array
You can also connect a Sun StorEdge 3510 FC JBOD array to both ports on a dual-
port HBA, ports on two single-port HBAs, or a port on a single-port HBA and a
single port on a dual-port HBA.
Use host-based multipathing software such as VERITAS DMP 3.2 or 3.5 software to
manage Sun StorEdge 3510 FC JBOD arrays connected to a host over more than one
loop. Multipathing software provides full services on multiple paths between the
server and the storage system.
FIGURE B-3 shows an example of a Sun StorEdge 3510 FC JBOD array with 12 drives,
connected to a host computer over two loops to two FC ports. In this example, both
ports are on dual-port HBAs.
FIGURE B-3 Sun StorEdge 3510 FC JBOD Array Attached to Two HBA Ports
When you connect your Sun StorEdge 3510 FC JBOD array to a host over two loops,
the format command shows 24 drives, 12 on each loop, because the host sees a
device entry for each path. If the loop switch ID is set to 0, these drives are identified
as ranging from c1t0d0 to c1t11d0 and from c2t0d0 to c2t11d0, as shown in
TABLE B-4. However there are, of course, still only 12 physical drives in the JBOD
array. These drives are arranged in four columns of three drives each, as shown in
TABLE B-3.
Host computer
JBOD array
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